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Japanese Kanuma is a unique soil amendment sourced from the volcanic regions of Kanuma City in Tochigi, Japan. Formed from the eruption of Mount Akagi approximately 45,000 years ago, this remarkable material is tailored for acid-loving plants.
To maximize the effectiveness of Kanuma, follow these simple guidelines:
With Japanese Kanuma, you can provide your acid-loving plants with the ideal growing medium. Experience the difference in your plant's health and vitality, all while enjoying the ease of use that comes with this premium product.
Premium growing medium for acid-loving plants like azaleas, camellias, and ferns. Customers said it's "light and airy," holds moisture without becoming soggy, and maintains consistent low-pH properties. Mixed particle sizes provide excellent aeration and prevent clumping. "Plants are thriving beyond expectation" with improved root health.
The 17-litre bag of Japanese Kanuma mixed particles exceeded expectations. Light and airy, it holds moisture without getting soggy, and my acid-loving ferns and gardenias perked up within days. Grain size is consistent, very little dust, and it stays fluffy after watering — no concrete clump. It’s a small splurge compared with generic mixes, but root health improved fast enough that I’m sold. Great if you want an easy, reliable base for anything that likes a low-pH, well-aerated medium.
Repotting my Azaleas have always been stressful as they are so precious, but challenging (lost my first one years ago that left me in months of mourning).
When I used the Kanuma this season I was again quite nervous. BUT, what a result - they are thriving beyond expectation!!!
This is worth more than the cost and I will never use any other product.
Thank you Terry - this has been a transformation for me and my Azaleas.
Louise
Thanks for this review Louise! I am so glad to know you had such improvement using the Kanuma, I have also been amazed at the effect it has on acid loving plants in general.
Best growing medium for Azalea and Camelia, and great quality and very helpful that it’s in various particle sizes!
Anyone that is not using Kanuma for growing their Azaleas are just missing out on getting their Azalea plants to their full potential.
Highest quality Kanuma. Great service from the Bonsai Tree team. Thanks very much!
Having used the product before to develop my Azalea, I can honestly say this product is magic. Despite its soft texture, it still maintains its acidic properties from start till you repot. A really fantastic product that keeps the guesswork out of maintaining the ideal ph balance to develop rhododendrons optimally. Thank you. Hassim Gora Khaki.
looking forward to spring so I can look at moving an azalea from a nursery container mix into the kanuma . whatever products I've received from you have always been of top quality & will only be to happy to use again .
Wow never knew how great is this product,next stop large bag next season
I specifically bought this media for use in my Chinese cymbidium collection. New growths seem to be popping out even though we are in winter (so I am convinced they love it)
Package was delivered with care and very quickly. More Kanuma will definitely purchased in the near future
Thanks so much for this review Hamza. It is so interesting for us to learn of new applications for our products and when they produce great results too.
Firstly the service of Bonsai Tree is past excellent. They are very efficient. The Kanuma 18lt was received well packaged. I have used it for my acid loving Bonsai's and they are very happy with the new media. Many thanks